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A palaeoartist's impression of the dinosaurs and their footprints. Credit: Megan Jacobs

Footprints of dinosaurs that walked 110 million years ago found

The largest footprint found – measuring 80 cm in width and 65 cm in length – has been identified as belonging to an Iguanodon-like dinosaur

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During a mass cremation at a crematorium in New Delhi, April 26, 2021

Do excess deaths suggest mortality crossed one million?

Depleted soils: Another reasons for low nutrients can be that the soils supporting plants could be low in plant-available nutrients

Are your staple rice and wheat losing their nutrients?

Aswathi Pacha One reason could be that the rate of yield increase is not compensated by the rate of nutrient uptake by plants

Canine culture: The dogs’ language is a complex one involving intricate behavioural displays – gestures, vocalisations, movements, mating rituals etc.

Dog language now falls in line: pattern analysis study

Shubashree Desikan The analysis is a tool for behavioural biologists to study their model animals

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Dew drops on a spider web at Lammasingi, famously known as the 'Kashmira' of Andhra Pradesh, in Visakhapatnam district

Question Corner | Do spiders have sticky feet?

Readers may send their questions/answers to questioncorner@thehindu.co.in

Best from science journals: What makes us sneeze?

Aswathi Pacha Here are some of the most interesting research papers to have appeared in top science journals last week.

The chemicals also pose the risk of environmental contamination associated with manufacturing and disposal

Half of U.S. cosmetics contain toxic chemicals: study

AP Some of the highest PFAS levels were found in waterproof mascara and long-lasting lipstick

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Worldview with Suhasini Haidar | Origins of COVID-19

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Footprints of dinosaurs that walked 110 million years ago found

Explained | What is gain-of-function research?

Explained | Is there a Wuhan connection to the study on bat viruses in Nagaland?

Explained | Why do periodical cicadas stay underground, and when do they emerge?

Question Corner | Do spiders have sticky feet?

Dog language now falls in line: pattern analysis study

Coronavirus | Do excess deaths suggest mortality crossed one million?

Besides models, all-cause mortality numbers from India’s Civil Registration System suggest that official figures may have been exceeded by far

Are your staple rice and wheat losing their nutrients?

One reason could be that the rate of yield increase is not compensated by the rate of nutrient uptake by plants

Fish once labeled a 'living fossil' surprises scientists again

Scientists said these large and nocturnal deep-sea creatures can live upto 100 years

Fossils show new species of extinct giant rhino that roamed Asia

Paraceratherium linxiaense were hornless, long-necked herbivores

Chinese astronauts dock with space station

The three-man crew will be in orbit for three months.

On Sun, its eclipses and beauty spots: The Hindu Science Quiz

Correct answers are highlighted in green. Click on the correct answer for further reading on the topic.

Two Viking relatives reunited in Denmark after 1,000 years

The 150 bones have been lent to the Danish museum by the Oxfordshire Museum in Britain for three years

Best from science journals: What makes us sneeze?

Here are some of the most interesting research papers to have appeared in top science journals last week.

Half of U.S. cosmetics contain toxic chemicals: study

Some of the highest PFAS levels were found in waterproof mascara and long-lasting lipstick

Two doses of AstraZeneca vaccine have 92% protection against hospitalisation with delta variant

In the case of Pfizer vaccine, the protection against hospitalisation was 94% after one dose and 96% after two doses.

'Divine Vessel' to mark China's first human spaceflight since 2016

China, which aims to become a major space faring power by 2030, in May became the second country to put a rover on Mars,two years after landing the first spacecraft on the far side of the moon.

India’s investment in research unsatisfactory: UNESCO report

Gross domestic expenditure on research has stayed at 0.7% of the GDP for years

Mouse sperm stored on International Space Station produces healthy offspring

Solar flares from the surface of the Sun generate particles that can have particularly devastating impacts on human health and penetrate current generation spaceships.

Trip to space with Jeff Bezos sells for $28 million

The Amazon founder’s rocket company, Blue Origin, did not disclose the winner’s name.

‘Operation Olivia’ to the rescue of Olive Ridleys

The Coast Guard helps enforce laws to protect turtles as they arrive to nest in Odisha

Question Corner: Why do some corals withstand climate change better than others?

Readers may send their questions/answers to questioncorner@thehindu.co.in

A molecular view of SARS-CoV-2, the novel coronavirus

How scientists make out the difference between variants of a virus

Will 25% COVID-19 vaccines for private hospitals aggravate inequity?

On June 7, when India announced a reversal of vaccine procurement to a system of centralised procurement with free vaccines to be provided for the 18–44 age group, it allowed 25% of vaccine procurement exclusively by the private sector.

Meet Bharitalasuchus tapani, a carnivorous reptile that lived 240 million years ago

The Indian fossil specimen was not studied earlier because it was not as complete as the specimens found in other countries

Two doses of COVID-19 vaccine offer 77% protection against hospitalisation, CMC Vellore study finds

The study found that even a single dose of COVID-19 vaccine offered significantly high protection against both infection and hospitalisation.

In photos: Rover leaves 'China's imprint' on Mars

China is the second country to land and operate a spacecraft on Mars, after the United States.

CHIME telescope yields unprecedented results

Scientific collaboration detects more than 500 mysterious fast radio bursts in its first year of operation

All about differences: The Hindu Science Quiz

Correct answers are highlighted in green. Click on the correct answer for further reading on the topic.

New low-cost sensor to detect COVID-19 in wastewater

The researchers found that the sensor was able to detect the genetic material at concentrations as low as 10 picograms per microlitre

Tiny worm comes back to life after 24,000 years in Siberian deep freeze

Previous research suggested it could survive for a decade when frozen at -20 degrees Celsius

Explosive secret of volcanoes

Volcanoes that for millennia have erupted a certain way have the ability to undergo unexpected changes

CCMB scientists discover new enzyme for cell stability

The Centre for Cellular and Molecular Biology (CCMB) scientists here have discovered an enzyme that helps maintain the stability and integrity of cell

Best from science journals: Decoding northern lights

Here are some of the most interesting research papers to have appeared in top science journals last week.

Carbon dioxide in the air at highest level since measurements began

The amount of carbon in the air now is as much as it was about 4 million years ago

Comment | COVAX is failing to halt the COVID-19 pandemic: here’s why, and how to fix it

COVAX is one of three pillars of the initiative known as the Access to COVID-19 Tools (ACT) Accelerator, which was launched in April 2020.

Anaemia higher among rural poor, iron deficiency afflicts urban rich

Solutions focusing merely on increasing iron intake not enough, shows study

Meet A.cooperensis, Australia's largest dinosaur

The skeleton first went on display to the public in 2007

Covaxin offers protection against beta and delta variants, says study

The study was carried out by researchers from National Institute of Virology, ICMR and Bharat Biotech.

Scientists saving endangered salmon get help from gene-slicing tool

Sherlock, which stands for Specific High-sensitivity Enzymatic Reporter Unlocking, identifies the fish using their genomic sequence

The science behind GM crops

More than 10% of the world’s crop land grow Genetically Modified crops or GM crops. Scientists around the world have been asserting that GM crops can solve the world’s hunger problem. Still concerns about health and environment prevail. What are GM crops and what are their merits and demerits? Let’s find out...

Study points to pileup of biomedical waste

Over two lakh kilograms of biomedical waste was generated each day last month by hospitals in India dealing with COVID-19 patients, a new report

Emergence of order from chaos in turbulent systems and Bose-Einstein condensation

This ordering leads to aeroelastic flutter and thermoacoustic instabilities as observed during the failure of the F1 engine of Apollo rocket during trials

Question Corner | Do elephants breathe and drink using their trunks?

Readers may send their questions/answers to questioncorner@thehindu.co.in

Coronavirus | The need to stay prepared for multiple waves and variants

The slow down in daily cases has been mainly due to strict lockdowns in many States.

How to recover from a spinal cord injury

It is well known that mammals including humans show a high capacity for brain and spinal cord regeneration but only during young ages.

Shrinking giants: North Atlantic right whales getting tinier

“This isn’t about ‘short’ right whales, it’s about a physical manifestation of a physiological problem, it’s the chest pain before the heart attack,” said Regina Asmutis-Silvia, executive director of Whale and Dolphin Conservation North America

More deforestation and less rain threaten Brazilian agribusiness: study

The new study looked at rainfall changes between 1999 and 2019 in the southern Brazilian Amazon as a model for future rainfall shifts

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